The fact that they are releasing their own crytpocurrency means that they are bullush on crypto don't you think?
No. Their 'coin' is not a cryptocurrency. It's a dollar token that uses elements of cryptocurrency's technology to operate.
It has the exact same issues as the dollar itself with plenty of its own on top as an extra enticement. And it doesn't look like it'll be available to anyone other than the banks themselves for their internal operations.
It can be pure marketing strategy too...
What happened in 2017? A lot of people saw bitcoin to climb to the ATH and now they know a little bit about cryptos. (a really little bit). They also heared about the huge fall in the price of bitcoin.
They know that the price of bitcoin can fall because of the supply and demand on the short and long run, but they also know that the technology behind won't fail, so they trust the technology instead of the coin itself.
If you are a bank, how would you get more customers? You should differentiate yourself from the competitors. Banks are identical in services (nearly), so what makes people choose a bank is the 'brand'. A stronger brand means more customers on the long run. How could you make your brand stronger? You should make people trust in your bank and what is the base of the trust? It's the safety of your money.
Now if you state publicly that you are going to develop and install a new back end system that makey your bank even more secure (because of the new blockchain technology, or something similar) people will belive you and would trust you even more. You don't even have to tell technical details, because people can't check what system do you use behind the scenes, so it's totally up to the marketing guys what they say and how they say it, to make the brand stronger... Like this communication from JP, it won't tell you much details but it's enough to make people belive that they will be better with the new system, and this is exactly what they want to achive.